suggestionList-test: improve readability

Author: IvanGoncharov

src/jsutils/__tests__/suggestionList-test.js

@@ -5,52 +5,50 @@ import { describe, it } from 'mocha';
 
 import suggestionList from '../suggestionList';
 
+function expectSuggestions(input, options) {
+  return expect(suggestionList(input, options));
+}
+
 describe('suggestionList', () => {
   it('Returns results when input is empty', () => {
-    expect(suggestionList('', ['a'])).to.deep.equal(['a']);
+    expectSuggestions('', ['a']).to.deep.equal(['a']);
   });
 
   it('Returns empty array when there are no options', () => {
-    expect(suggestionList('input', [])).to.deep.equal([]);
+    expectSuggestions('input', []).to.deep.equal([]);
   });
 
   it('Returns options with small lexical distance', () => {
-    expect(suggestionList('greenish', ['green'])).to.deep.equal(['green']);
-    expect(suggestionList('green', ['greenish'])).to.deep.equal(['greenish']);
+    expectSuggestions('greenish', ['green']).to.deep.equal(['green']);
+    expectSuggestions('green', ['greenish']).to.deep.equal(['greenish']);
   });
 
   it('Returns options with different case', () => {
     // cSpell:ignore verylongstring
-    expect(suggestionList('verylongstring', ['VERYLONGSTRING'])).to.deep.equal([
+    expectSuggestions('verylongstring', ['VERYLONGSTRING']).to.deep.equal([
       'VERYLONGSTRING',
     ]);
 
-    expect(suggestionList('VERYLONGSTRING', ['verylongstring'])).to.deep.equal([
+    expectSuggestions('VERYLONGSTRING', ['verylongstring']).to.deep.equal([
       'verylongstring',
     ]);
 
-    expect(suggestionList('VERYLONGSTRING', ['VeryLongString'])).to.deep.equal([
+    expectSuggestions('VERYLONGSTRING', ['VeryLongString']).to.deep.equal([
       'VeryLongString',
     ]);
   });
 
   it('Returns options with transpositions', () => {
-    expect(suggestionList('agr', ['arg'])).to.deep.equal(['arg']);
-
-    expect(suggestionList('214365879', ['123456789'])).to.deep.equal([
-      '123456789',
-    ]);
+    expectSuggestions('agr', ['arg']).to.deep.equal(['arg']);
+    expectSuggestions('214365879', ['123456789']).to.deep.equal(['123456789']);
   });
 
   it('Returns options sorted based on lexical distance', () => {
-    expect(suggestionList('abc', ['a', 'ab', 'abc'])).to.deep.equal([
-      'abc',
-      'ab',
-    ]);
+    expectSuggestions('abc', ['a', 'ab', 'abc']).to.deep.equal(['abc', 'ab']);
   });
 
   it('Returns options with the same lexical distance sorted lexicographically', () => {
-    expect(suggestionList('a', ['az', 'ax', 'ay'])).to.deep.equal([
+    expectSuggestions('a', ['az', 'ax', 'ay']).to.deep.equal([
       'ax',
       'ay',
       'az',